ALUMINIUM SULPHATE OCTADECAHYDRATE
ALUMINIUM SULPHATE OCTADECAHYDRATE Extra Pure
Short Name: ALUMINIUM SULPHATE OCTADECAHYDRATE
Synonym: Alum; Dialuminum sulfate octadecahydrate
Basic Details
Article No.
LG0225
Grade
Extra Pure
Purity
CAS No.
7784-31-8
HS Code
2833.2210
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White powder
pH value
3 - 4
Melting point/ Freezing point [°C]
86 °C
Solubility in water [% weight]
Soluble in water
Chemical Specifications
Appearance
A white crystalline powder
Assay (as AI2(SO4)3; complexometric)
51 - 59%
pH (2% solution in water)
2.5 - 4.0
Chloride (Cl)
Max 0.005%
Heavy metal (as Pb)
Max 0.002%
Ammonium (NH4)
Max 0.005%
Arsenic (As)
Max 0.001%
Calcium (Ca)
Max 0.02%
Iron (Fe)
Max 0.005%
Potassium (K)
Max 0.2%
Alkalies & alkaline earth metals
Max 0.4%
Safety Information & Hazard Symbols
Symbol
GHS05
Signal Word
Danger
Hazardous Statement
H318
Precaution Statement
P280-P305 + P351 + P338